assurance：保证，担保，确信，把握，信心

词根词缀：as-来,临近 + -sur-确信 + -ance

• sporting
• sportscast
• sportscaster
• sportsman
• sportsmanlike
• sportsmanship
• sporty
• spot
• spotless
• spotted
• spotter
• spotty
• spousal
• spouse
• spout
• sprain
• sprat
• sprawl
• spray
• sprayer
• spread
• spreadeagled
• spreadsheet
• spree
• sprig